US9684768B2 - System and method for determining an optimal type and position of an implant - Google Patents
System and method for determining an optimal type and position of an implant Download PDFInfo
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- US9684768B2 US9684768B2 US14/666,001 US201514666001A US9684768B2 US 9684768 B2 US9684768 B2 US 9684768B2 US 201514666001 A US201514666001 A US 201514666001A US 9684768 B2 US9684768 B2 US 9684768B2
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- G06F19/3437—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
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- G06F17/50—
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/50—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/102—Modelling of surgical devices, implants or prosthesis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/105—Modelling of the patient, e.g. for ligaments or bones
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/108—Computer aided selection or customisation of medical implants or cutting guides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2055—Optical tracking systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/25—User interfaces for surgical systems
- A61B2034/256—User interfaces for surgical systems having a database of accessory information, e.g. including context sensitive help or scientific articles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B2090/364—Correlation of different images or relation of image positions in respect to the body
- A61B2090/365—Correlation of different images or relation of image positions in respect to the body augmented reality, i.e. correlating a live optical image with another image
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/25—User interfaces for surgical systems
Abstract
Description
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- Lavallee—System for determining the position of a knee prosthesis US20050101966; and
- Fluete—Restoring of three-dimensional surfaces by using statistical models U.S. Pat. No. 7,227,981.
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- The global optimization algorithm is as follows:
- For each implant type t (ex: t1=standard, t2=gender)
- For each implant size s (ex: from size A to size E)
- P(t,s)=Optimize (Implant_Model_t_s, rotation criteria, translation criteria, list of constraints).
- Discriminating_Score(t,s)=Scores (P(t,s),
- Morpholocial_Discriminating_Criteria)
- If Discriminating_Score(t,s)<Optimum_Score,
- Then Optimum_Score=Discriminating_Score(t,s)
- And Optimum_Solution=(t, s, P(t,s)).
- Then Optimum_Score=Discriminating_Score(t,s)
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- Asking the surgeon to identify with the pointer;
- Using surface curvature and shape of the bone itself;
- By comparing the reconstructed bone surface with the generic morphing model using only global and not local deformation;
- Identify areas which have undergone the most important deformations from the generic morphing model once the bone morphing has been performed;
- Using the modes of variation;
- By comparing it to the contra-lateral joint (for example, when pre-operative or intra-operative imaging is performed);
- Using information of the measured kinematics (e.g. laxity); and
- By using the relative bone orientations and global anatomy such as the mechanical axis to predict worn areas.
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- Determining initially a subset of optimal implant sizes and positions for different implant types and then choosing the particular implant type that minimizes the difference between the bone surface and external implant surface in specific local areas;
- Providing global numerical values such as the average and maximum deviation between the bone and the model in certain areas for a subset of implants in the database, to help the surgeon select which implant to use;
- Find the best fitting implant type, size and position minimizing the distances between the bone shape and external implant shape while maintaining functional constraints such as alignment to the mechanical axis, troclear groove, epicondylar axis rectangular flexion spaces, patellar trajectory, etc.;
- Using the ratio of width to AP dimension to best match the implant to the bone;
- Using the contours of the virtual cuts compared to the contours of the implant cuts (especially the shape of the anterior cut contours);
- Matching the AP dimension with the implant size and then selecting the implant that minimize the degree of overhang or exposed bone at the perimeter of the implant for at least two different types;
- Using contralateral joint if not worn (image based); and
- Using the patients gender or race as an initial input to selecting which prosthesis types to compare.
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- Color proportional to distance;
- Implant in semitransparent color superimposed over bone surface with the shade of transparency proportional to the distance to the bone;
- “scanner-like slices” in sagittal, frontal and axial planes showing the profile of the bone and the profile of the implant external surface;
- using the direction normal to the implant or bone surface;
- In some cases the bone may also protrude from the implant which can also be represented in different color or tone than for bone which is inside the prosthesis;
- Using different representations for areas of the bone model that are normal and pathological;
- Using different representations for areas of the Bone Morphing Model that are not accurate; and
- Displaying difference between operated knee and contra-lateral knee morphology taking into account worn and not worn surfaces.
Claims (19)
Priority Applications (1)
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US14/666,001 US9684768B2 (en) | 2006-12-12 | 2015-03-23 | System and method for determining an optimal type and position of an implant |
Applications Claiming Priority (4)
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US86966806P | 2006-12-12 | 2006-12-12 | |
US11/955,160 US8214016B2 (en) | 2006-12-12 | 2007-12-12 | System and method for determining an optimal type and position of an implant |
US13/540,134 US8990052B2 (en) | 2006-12-12 | 2012-07-02 | System and method for determining an optimal type and position of an implant |
US14/666,001 US9684768B2 (en) | 2006-12-12 | 2015-03-23 | System and method for determining an optimal type and position of an implant |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/540,134 Continuation US8990052B2 (en) | 2006-12-12 | 2012-07-02 | System and method for determining an optimal type and position of an implant |
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Publication Number | Publication Date |
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US20150193591A1 US20150193591A1 (en) | 2015-07-09 |
US9684768B2 true US9684768B2 (en) | 2017-06-20 |
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US11/955,160 Active 2030-12-03 US8214016B2 (en) | 2006-12-12 | 2007-12-12 | System and method for determining an optimal type and position of an implant |
US13/540,134 Active 2028-10-30 US8990052B2 (en) | 2006-12-12 | 2012-07-02 | System and method for determining an optimal type and position of an implant |
US14/666,001 Active US9684768B2 (en) | 2006-12-12 | 2015-03-23 | System and method for determining an optimal type and position of an implant |
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US11/955,160 Active 2030-12-03 US8214016B2 (en) | 2006-12-12 | 2007-12-12 | System and method for determining an optimal type and position of an implant |
US13/540,134 Active 2028-10-30 US8990052B2 (en) | 2006-12-12 | 2012-07-02 | System and method for determining an optimal type and position of an implant |
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US10452238B2 (en) | 2013-03-15 | 2019-10-22 | Blue Belt Technologies, Inc. | Systems and methods for determining a position for placing of a joint prosthesis |
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US20150193591A1 (en) | 2015-07-09 |
US20120271599A1 (en) | 2012-10-25 |
US20080319448A1 (en) | 2008-12-25 |
US8990052B2 (en) | 2015-03-24 |
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